FeaturesNamed after the Italian “Vitale Bramani”. Vibram is probably the world’s best known manufacturer of high-end sole units.Yak-leather: Exceptionally hard-wearing, yet surprisingly supple. HANWAG only uses robust, hydrophobic Tibetan Yak leather that is 2.2 to 2.6 millimeters thick. Sourced exclusively from the Lhasa Leather Factory in Tibet.Thanks to their cemented construction or double stitched construction our boots and shoes can be resoled as many times as required.